Improvement in gas-regulators



J. MILLER, Jr. Gas-Regulator. No. 201,270. I Patented March 12,1878;

j o z n [N VEN T 013 ATTORNEYS.

N-PETERS, PHOTO-LITHOGRAFHER. WASHINGTON. DC.

UNITED STATES PATENT OFFICE.

JOHN MILLER, JR, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT lN GAS-REGULATORS.

Specification forming part of Letters Patent No. 201,270Qdated March 12,1878; application filed November 13, 1877.

To all whom it may concern:

Be it known that I, J OHN MILLER, Jr., of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Gas- Regulators; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform part of this specification, in which- Figure 1 is a longitudinalvertical section, and Fig. 2 is a horizontal section, of my invention.

. My improvements have for their object to provide a gas-regulator whichshall be more efficient in its operation, more durable, and less liableto get out of order than any device for the same purpose heretoforeproduced.

- ,This invention has relation to gas-regulators; and consists in thenovel construction, combination, and arrangement of parts hereinafterfully described and claimed.

Referring to the accompanying drawings, A designates the main shell orbody of the regulator, having a removable top, B. O and O are,respectively, the inlet and outlet passages for the gas, and c is anorifice in the top B for the admission and expulsion of air. D is aflexiblediaphragm, located at or about the middle of the body A, andfastened on an internal annular flange, a, on said body by a ring, a andscrews a as shown.

The diaphragm is composed of enameled leather, (or other equivalentmaterial having an enameled surface similar to such leather,) which Ihave found to be impervious to hydrocarbon gas, and not subject todeleterious effects from said gas or its resultant vapors, as leather orother material not enameled is.

The enameled side of the leather is turned down-that is, the enameledside is underneath, and adjacent to the gas-chamber E, of which saiddiaphragm forms the top.

F is the valve, having its seat at f, and a stem, f, which passesthrough and projects some distance above the diaphragm D, terminating ina threaded end, for receiving a nut, G.

H is a metallic plate or disk, which rests, as shown, on the diaphragmD, and I is a coiled spring, surrounding the stem f between the nut Gand disk H, and exerting pressure upon the latter.

K is a bifurcated standard, rigidly secured on the annular flange a, andL is a threaded rod, pivoted in the said standard and in the nut G,which is slotted at g for the reception of said rod. M is a weightedscrew-nut fitted to the rod L, so as to be moved to and fro on thelatter by turning.

Gas, being admitted from the meter through the inlet 0, raises thediaphragm D, which expands or inflates against the plate or disk H. Thedisk H is thus elevated or slid upwardly on the stem f, compressing thespring I and drawing up the valve F against the seat f. The nut orweight M is now moved forward in the direction of the nut G suflicientlyto load the valve F or depress it far enough away from its seat f topermit the gas to escape through the outlet 0 to the service-pipe at therequired pressure.

The rod L serves not only as a support for the weight M, but also as asteadying-bar for the valve-stem, and, through the latter and the diskH, for the diaphragm D, preventing the fluttering of the latter and theflickering of the light at the burner.

What I claim as my invention is- In a gas-regulator, the combination,with the flexible diaphragm D and plate H, of the central valve-stem fattached to the valve F, the spring I encircling said stem, the pivotedsteadying-bar attached to the valve-stem, and the weight M, adjustableon said bar, as shown and set forth.

In testimony that I claim the foregoing I have hereunto set my hand this19th day of October, 1877.

JOHN MILLER, JR.

